4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid
4-(5-甲基-3-苯基异恶唑-4-基)苯磺酸
Also known as: Valdecoxib Sulfonic Acid, Valdecoxib Impurity D, Parecoxib Impurity 25, Benzenesulfonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-, 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonic acid, 3-Phenyl-4-(4-sulfobenzyl)-5-methylisoxazole
4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid (CAS 181696-35-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H13NO4S and a molecular weight of 315.344 g/mol. It is also known as Valdecoxib Sulfonic Acid, Valdecoxib Impurity D and Parecoxib Impurity 25. Key property: a density of 1.341±0.06 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 181696-35-5
- Jingsj CID
- J-1188223-5
- Molecular Formula
- C16H13NO4S
- Chinese Name
- 4-(5-甲基-3-苯基异恶唑-4-基)苯磺酸
- Molecular Weight
- 315.344 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1.341±0.06 g/cm3 |
|---|
Frequently Asked Questions
What is the CAS number of 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid?
The CAS number of 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid is 181696-35-5.
What are the molecular formula and molecular weight of 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid?
4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid has molecular formula C16H13NO4S and molecular weight 315.344 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonic acid (CAS 181696-35-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1188223-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.